Versatile carbon superstructures for energy storage

Abstract

Three-dimensional carbon superstructures with ingenious topographies and favorable functionalities present attractive prospects in energy fields. Compared to the simple low-dimensional segments (e.g., nanosheets, nanoparticles), carbon superstructures deliver excellent skeleton robustness,...

Advances in organic cathode materials for aqueous multivalent metal-ion storage

“…In addition, the intensive physisorption and chemical interaction can prevent active organics from irreversible dissolution. 32,78,[88][89][90][91][92][93] Recently, porous carbon materials were electrodeposited with the poly(meta-aminophenol) layer and the conductive poly(para-aminophenol) coating to fabricate the Zn-ion battery cathode. 89 Benefiting from the synergy of the conductive poly(para-aminophenol) coating and the stable sandwich layer, the hybrid delivered abundant nucleation sites and improved capacity performance in contrast to pristine poly(meta-aminophenol)/poly(para-aminophenol) cathodes.…”

Dual Role is Always Better than Single: Ionic Liquid as a Reaction Media and Electrolyte for Carbon‐Based Materials in Supercapacitor Applications

“…Several methods have been made to fabricate carbon-based materials with desired functional groups. [27] Usually, pyrolysis is carried out using polymers or raw biomass to prepare carbon-based materials. [28] It can introduce heteroatoms into carbon materials by treating carbon material with reactive gases like H 2 S and ammonia or by carbonizing heteroatom-containing polymers.…”

Zincophilic multilayer graphene structures leveraging fast and ultrastable Zn-ion storage

“…The extremely low s values (4.4-14.1 U s −0.5 , Table S4 †) during the cycling veried the fast charge-transfer kinetics. [63][64][65] With the voltage increasing in the charge process, R ct and s exhibited a downward tendency, namely 26.6, 17.7, 11.8 U and 11.2, 8.9, 5.8 U s −0.5 , while the ion-diffusion coefficient of Zn 2+ (D Zn 2+) calculated through the equation demonstrated an upward trend, namely 1.4 × 10 −9 , 2.4 × 10 −9 , and 1.7 × 10 −8 cm 2 s −1 . In contrast, R ct and s showed a voltage-driven downtrend, while the value of D Zn 2+ would be restored back in the discharge process, conrming the reversible rapid ion-transport dynamics in the Fe-Na electrodes.…”